Added Python geometry.xml basic parsing using minidom.

src/utils/geometry.py

@@ -0,0 +1,47 @@
+#!/usr/bin/env python
+
+from xml.dom.minidom import parse
+
+class Geometry(object):
+
+    def __init__(self, filename):
+        dom = parse(filename)
+        rootElement = dom.firstChild
+
+        cells = rootElement.getElementsByTagName('cell')
+        surfaces = rootElement.getElementsByTagName('surfaces')
+        lattices = rootElement.getElementsByTagName('lattices')
+
+        self.cells = [Cell(elem) for elem in cells]
+        self.surfaces = [Surface(elem) for elem in surfaces]
+        self.lattices = [Lattice(elem) for elem in lattices]
+
+
+class Cell(object):
+
+    def __init__(self, domElement):
+        self.parse(domElement)
+
+    def parse(self, element):
+        for attribute in ['uid', 'universe', 'fill', 'material', 'surfaces']:
+            if element.hasAttribute(attribute):
+                setattr(self, attribute, element.getAttribute(attribute))
+
+        # Split strings into lists where necessary
+        if hasattr(self, 'surfaces'):
+            self.surfaces = self.surfaces.split()
+
+
+class Surface(object):
+
+    def __init__(self, domElement):
+        self.parse(domElement)
+
+    def parse(self, element):
+        for attribute in ['uid', 'type', 'coeffs', 'boundary']:
+            if element.hasAttribute(attribute):
+                setattr(self, attribute, element.getAttribute(attribute))
+
+        # Split strings into lists where necessary
+        if hasattr(self, 'coeffs'):
+            self.surfaces = self.surfaces.split()